Tray for utility cart



FIG. 1 is a perspective view showing the frontal right side of my tray for utility cart;

FIG. 2 is a front view of the tray for utility cart; and;

FIG. 3 is a rear view thereof.

The dashed lines shown in the Figures are for illustration only and form no part of the claimed design. 

The ornamental design for a tray for utility cart, as shown and as described. 